Ryan S Gilliand, PA-C - Medicare Physician Assistant in Chattanooga, TN

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Ryan S Gilliand, PA-C is a medicare enrolled "Physician Assistant" in Chattanooga, Tennessee. He graduated from nursing school in 2001 and has 25 years of diverse experience with area of expertise as Physician Assistant. He is a member of the group practice Chattanooga Diagnostic Associates Llc, Erlanger Health, Chattanooga Hamilton County Hospital Authority and his current practice location is 1510 Gunbarrel Rd Ste 120, Chattanooga, Tennessee. You can reach out to his office (for appointments etc.) via phone at (423) 697-8585.

Ryan S Gilliand is licensed to practice in Tennessee (license number 1848) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1548348980.

Contact Information

Ryan S Gilliand, PA-C
1510 Gunbarrel Rd Ste 120,
Chattanooga, TN 37421-7252
(423) 697-8585
(423) 697-8586

Map and Direction




Provider's Profile

Full NameRyan S Gilliand
GenderMale
SpecialityPhysician Assistant
Experience25 Years
Location1510 Gunbarrel Rd Ste 120, Chattanooga, Tennessee
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ryan S Gilliand graduated from nursing school in 2001
  NPI Data:
  • NPI Number: 1548348980
  • Provider Enumeration Date: 11/02/2006
  • Last Update Date: 05/14/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 8224097670
  • Enrollment ID: I20120615000519

Medical Identifiers

Medical identifiers for Ryan S Gilliand such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1548348980NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 1848 (Tennessee)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Erlanger Health SystemChattanooga, TNHospital
Parkridge Medical CenterChattanooga, TNHospital
Memorial Healthcare System, IncChattanooga, TNHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Chattanooga Diagnostic Associates Llc973927251927
Erlanger Health1153780226504
Chattanooga Hamilton County Hospital Authority0547179731159

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Ryan S Gilliand allows following entities to bill medicare on his behalf.
Entity NameChattanooga Hamilton County Hospital Authority
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154751931
PECOS PAC ID: 0547179731
Enrollment ID: O20040302001086
Entity NameChattanooga Diagnostic Associates LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679772099
PECOS PAC ID: 9739272519
Enrollment ID: O20070910000993
Entity NameErlanger Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477256303
PECOS PAC ID: 1153780226
Enrollment ID: O20230707000849

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Ryan S Gilliand is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Ryan S Gilliand, PA-C
1510 Gunbarrel Rd Ste 120,
Chattanooga, TN 37421-7252

Ph: (423) 697-8585		Ryan S Gilliand, PA-C
1510 Gunbarrel Rd Ste 120,
Chattanooga, TN 37421-7252

Ph: (423) 697-8585

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.